How do the angle of release at (15.0°, 30.0°, 45.0°,60.0° and 75.0°)± 0.5° of a simple pendulum of length (50.00± 0.05) cm and mass (50.00± 0.01) g undergoing 10 oscillations affect its frequencyHL
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6
Official IB Result
IB Grade: 6
Criteria A: Research Design
4/6
0
3
6
Criteria StrandsPro
A.1Research question context
Excellent
A.2Methodological considerations for collecting data
Moderate
A.3Methodological considerations
Moderate
Criteria Feedback
- The student framed the investigation in a specific physical context and linked it to an appropriate theory about pendulum motion.
- The student identified relevant control variables and included a clear enough apparatus and procedure for the investigation to be broadly reproducible.
- The student showed awareness of how the chosen angle range can test whether the small-angle approximation remains valid.
- There are contradictions in the stated string length and the number of oscillations timed, which reduce precision.
- Some methodological choices are described rather than fully explained, especially how the student's design ensures enough data quality and consistency.
- The method would be stronger if the student clarified the angle-setting procedure and the exact measurement details more consistently throughout the report.
Criteria B: Data Analysis
4/6
0
3
6
Criteria StrandsPro
B.1Communication of data recording and processing
Poor
B.2Consideration of uncertainties
Moderate
B.3Data processing quality
Poor
Criteria Feedback
- The student presented raw and processed data in a structured way, including means, periods, frequencies, and a graph.
- The student showed some appropriate attention to uncertainty through repeats, standard deviations, and error bars.
- The student made an effort to interpret the data cautiously where uncertainty made a firm claim less secure.
- There are major inconsistencies in the processing, especially around whether 10 or 20 oscillations were timed.
- Some uncertainty values are not clearly justified or propagated correctly, which weakens the reliability of the processed results.
- The graph and regression treatment do not fully match the theoretical relationship being investigated, so the quantitative analysis is not always aligned with the physics.
Criteria C: Conclusion
5/6
0
3
6
Criteria StrandsPro
C.1Conclusion relevance and support
Moderate
C.2Scientific context comparison
Moderate
Criteria Feedback
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Criteria D: Evaluation
5/6
0
3
6
Criteria StrandsPro
D.1Methodological weaknesses
Good
D.2Suggested improvements
Moderate
Criteria Feedback
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- Ut enim ad minim veniam, quis nostrud exercitation ullamco laboris nisi ut aliquip ex ea commodo consequat.
- Duis aute irure dolor in reprehenderit in voluptate velit esse cillum dolore eu fugiat nulla pariatur.
- Excepteur sint occaecat cupidatat non proident, sunt in culpa qui officia deserunt mollit anim id est laborum.